The middle school I went to back in the early 1980s once had (just that bit before my time there) a very tough character who was the PE teacher and the stories I heard of him were kind of like hearing about King Kong in the jungle. You valued your health, you certainly didn’t give this person any trouble. It seems that kids these days never ever grew up with that sort of thing.
Went to high school back in the 60’s. Our principal was a chap that stood about 6’4” and went about 240. Poor behavior or disrespect was frowned upon. Occasionally he would throw a miscreant up against a locker as a reminder. We had very few problems.